81851935

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{787}}^1$

素因数の和:895

約数の個数: 32

約数和(自身を含む): 112564224

約数和(自身を除く): 30712289

約数列:

[1, 5, 11, 31, 55, 61, 155, 305, 341, 671, 787, 1705, 1891, 3355, 3935, 8657, 9455, 20801, 24397, 43285, 48007, 104005, 121985, 240035, 268367, 528077, 1341835, 1488217, 2640385, 7441085, 16370387, 81851935]

約数ペア:

[(1, 81851935), (5, 16370387), (11, 7441085), (31, 2640385), (55, 1488217), (61, 1341835), (155, 528077), (305, 268367), (341, 240035), (671, 121985), (787, 104005), (1705, 48007), (1891, 43285), (3355, 24397), (3935, 20801), (8657, 9455)]